Engine-governor.



' J. W. SARGENT.

ENGINE GOVERNOR. APPLICATION FILED SEPT. 6, 1910.

Patent ed Mar. 14, 1911.

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J. W. SAR-GENT. f ENGINE GOVERNOR. urmoumn FILED SEPT. e, 1910.

Patnted Mar. 14,1911,

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JOHN W. SARGENT, 0F PROVIDENCE, RHODE ISLAND.

EN GIN E-GOVERNOR.

Specification of Letters Patent.

Patented Mar. 14, 191 1.

Application filed September 6, 1910. Serial No. 580,700.

To all whom "it may concern:

Be it known that I, JOHN W. SARGENT, of the city and county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Engine-Grow ernors; and I do hereby declare the following specification, taken in connection with the accompanying drawings, forming a part of the same, to be a full, clear, and exact description thereof.

My invention relates to engine governors of that class ordinarily known as shaftgovernors and has for its objects to eliminate excessive strain and friction on the journals or pivots in governors of this class due to the centrifugal force of the weight and tension of the spring, and to provide a governor having great power and facility of adjustment.

To these ends the invention consists in the novel construction and combination of parts hereinafter described and claimed.

In describing my invention in detail ref erence will be made to the accompanying drawings, in which Figure 1 is a side elevation of the flywheel of an engine showing my novel form of governor attached thereto. Fig. 2 is an end view partly in section. Fig. 3 is an en larged side view of the governor showing the same at its latestcut-oif position. Fig. 4. is a similar view showing the governor at its earliestcut-off position.

Referring to the drawings, 1 represents the engine-shaft and 2 the fly-wheel mounted thereon. A11 eccentric 3 is mounted to swing on a pivot 3 secured in the hub 2' of the I -wheel 2. Extending laterally from the eccentric 3 is a bent arm 1 which has its free end pivo-tally connected at 5 to one end of a link 6. The other end of the link 6 is pivotally connected at 7 to one end of a rocker-arm 8. The rocker-arm 8 is pivoted near its center at 9 to the fly-wheel 2, and a centrifugal weight 10 is pivoted at or near its center of gravity at 11 to the opposite end of said rocker-arm 8.

As shown in Fig. 1, the center line of effort or combined strain of the springs is radial from the center of shaft 1, and the are of motion of the pivot 11 is approximately in this same radial line.

A series of springs 12, 13, 14, and 15, of equal size and tension, are each pivotally connected at one end to the centrifugal weight 10 on the side adjacent the shaft 1 and are each pivotally connected at the opposite end to the rim of the fly-wheel, said springs being arranged substantially at right angles to the weight 10, and the springs 12 and 13. being located upon one side of the shaft 1 and the springs 141 and 15 being located upon the opposite side of said shaft. With the above construction it will be seen that, as the centrifugal weight 10 moves in or out from said shaft 1, the weight and springs maintain their same rectangular relation and there is practically no turning action of the springs upon their pivots and that none of the centrifugal or spring strain comes on the pivot 11.

It is obvious that any spring connection may be made with the weight 10, whereby the spring effort is substantially in a radial line from the center of the engine-shaft through pivot 11 of the weight.

The'arrangement of this governor has the advantage of the governor-weight being in gravity balance with the eccentric and strap.

What I claim as my invention and desire to secure by Letters Patent is:

1. In a device of the character described, the combination, with an eccentric, of an actuating rocker-arm, a centrifugal weight pivoted on said rocker-arm and adapted to move said rocker-arm in one direct-ion, and a spring attached to said weight and adapted to move said rocker-arm in the opposite direction.

2. In a device of the character described, the combination, with an engine-shaft, of an eccentric, an actuating rocker-arm, and a spring actuated centrifugal weight, pivoted on said rocker-arm, the arc of motion of said weight pivot and center line of spring effort being both approximately in a radius from the center of said engine-shaft.

3. In a device of the character described, the combination, with an eccentric, of an actuating rocker-arm, a centrifugal weight pivoted near its center of gravity on said rocker-arm, and a series of springs attached to said weight and arranged and adapted to resist the centrifugal force of said weight.

4. In a device of the character described, the combination, with an eccentric, of an actuating rocker-arm pivoted near its center, means connecting one end of said rockerarm to said eccentric, a centrifugal weight pivoted near its center of gravity on the other end of said rocker-arm, and a spring attached to said eight'upon each sideof its pivot and arranged and adapted to resist the centrifugal force ofsaidweight:

5. In a device of the character described, the combination, with an engine fly wheel', of an eccentric and an actuating rocker-arm pivotally' mounted thereon, a centrifugal Weight pivotally mounted on said rockerarm, am a series of springs connected at one end to said Weight andat the other end to the rimof said-fly-Wheel, said springs extendingupon opposite sides of the axis of said fly-Wheel and-at right angles to said centrifugal eight.

6. In a device of the character described, the combination, With-an engine fly-Wheel, of an eccentric pivotally mounted thereon, a-

lateral 'arm secured to said eccentric and pivotally connected to a link, a rocker-arm ivoted near its center to thefiy-Wheel an at one end to said link, a centrifugal Weight pivoted near the other end of said rockerarm and having its center of gravity substantially at its pivot, a series of springs pivotallyconnected-:atzone end to said Weight and at the other end to said fly-wheel, the arc or motion of the Weight pivot and the center line of spring efi'ort being both approximately in a radius from the axis of said fly-Wheel.

JOHN W. SARGENT. Witnesses:

W. H. THURSTON, J. H. Tnnnsron.

Copies of this patent may. be obtained for five cents each, by addressing. the Commissioner of Patents, Washington, D. C. 

